Mafs Sketchbook

Hello) My name is Mafs, and this is my sketchbook. I'm newbie in the world of Big Art, but I'll try to draw on the level of other camradez

Recently bought a graphics tablet, lol. Decided to draw something. After some thought i drawed red man in black shorts. And here he is:
Yes, I know that the anatomy is far from ideal but this is my first serious work, and I'm just a beginning artist. I'll take note of any constructive criticism from you, thanks
P.S.: i'm still working on him, yes.